Q. International date line is located along

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Q. Places having same latitude

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Q. The difference in longitude of two places expressed in time is equal to the difference in their

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Q. If the general ground level of any area is 10% of the flying height, the principal points may be used as the centres of radial directions for small scale mapping even in tilted photograph up to

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Q. The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as

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Q. The relief displacement of a minar 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is

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Q. Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.

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Q. While making astronomical observations, the observer is mainly concerned with

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Q. The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is

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Q. In a tropical year, the number of sidereal days, are

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Q. Pick up the correct statement from the following :

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Q. Polaris is usually observed for the determination of the azimuth when it is

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Q. The latitude (λ) of a place and the altitude (α) of the pole are related by

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Q. The angle between the axis of earth and the vertical at the station of observation is called

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Q. For any star to be a circumpolar star, its

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Q. The elevation of the star at elongation is obtained by

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Q. The necessary geometrical condition for triangulation adjustment, is :

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Q. Assuming human normal vision distance 25 cm, smallest measurable angle 20", and introcular distance 6.5 cm, the smallest depth to be discerned is

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Q. The main object of the astronomer to obtain

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Q. If f is the focal length of the camera lens and θ is the angle of tilt, the distance of the plumb point from the principal point will be

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